CN105927315B - A kind of impedance composite muffler - Google Patents
A kind of impedance composite muffler Download PDFInfo
- Publication number
- CN105927315B CN105927315B CN201610423727.XA CN201610423727A CN105927315B CN 105927315 B CN105927315 B CN 105927315B CN 201610423727 A CN201610423727 A CN 201610423727A CN 105927315 B CN105927315 B CN 105927315B
- Authority
- CN
- China
- Prior art keywords
- bend pipe
- partition
- inlet cylinder
- port
- casing assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/10—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling in combination with sound-absorbing materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/06—Silencing apparatus characterised by method of silencing by using interference effect
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/007—Apparatus used as intake or exhaust silencer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2210/00—Combination of methods of silencing
- F01N2210/06—Throttling-expansion and interference
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
A kind of novel impedance composite muffler, be built-in with that dissipative muffler utilizes is resistive sound-absorbing material, is attached on the rigid conduit wall of Acoustic Wave Propagation, it can allow most high frequency sound wave to enter material, it is preferable for high-frequency noise effect to make sound wave gradually use up totally；Built-in reactive muffler mainly bypasses resonant cavity on pipeline either makes the area of pipeline mutate, there is selectivity for the sound wave of different frequency, so that phenomena such as sound wave occurs to reflect and interfere in the duct, preferable for low, intermediate frequency silencing noise effect.The silencer can integrate dissipative muffler and reactive muffler various functions, preferable to the control effect of each frequency range exhaust noise.Use space has preferably been saved simultaneously, has been suitable for various vehicle applications, therefore there is good market value and application prospect.
Description
Technical field
The invention belongs to field of automobile, more particularly to a kind of impedance composite muffler.
Background technology
The Main Noise Sources of vehicle include induction noise, exhaust noise, fan noise, Radiated Noise of Engine Surfaces noise and its
The noise that his parts vibration generates, wherein exhaust noise is very important important component.Existing technology maturation
Exhaust silencer can be divided mainly into reactive muffler and dissipative muffler.What dissipative muffler utilized is resistive sound-absorbing material, attached
It on the rigid conduit wall of Acoustic Wave Propagation, it can allow most high frequency sound wave to enter material, to make sound wave gradually disappear
Consumption is totally, preferable for high-frequency noise effect；Reactive muffler mainly bypasses resonant cavity on pipeline either makes pipeline
Area mutates, and has selectivity for the sound wave of different frequency so that sound wave occurs to reflect and interfere etc. existing in the duct
As preferable for low, intermediate frequency silencing noise effect.Resistive and reactive muffler is used alone, and cannot effectively exclude exhaust and make an uproar
The noise of different frequency range in sound, this will be such that the noise elimination effect of silencer substantially reduces, cannot get a desired effect.Currently, one
A little producers also research and development with improve impedance composite muffler, but be primarily directed to fixed vehicle, reliability, universality with
Interchangeability is undesirable.
Invention content
The invention aims to provide a kind of novel impedance composite muffler, which can collect dissipative muffler
With reactive muffler function, preferable to the control of different frequency range exhaust noise, there is reliability height and applied widely
The characteristics of.
The technical solution of use
A kind of impedance composite muffler, including：Casing assembly, first row inflator, cover, the first bend pipe, the first inlet cylinder,
Second inlet cylinder, the second bend pipe, threeway, second row inflator and built-in thin inlet cylinder composition；It is characterized in that：
Casing assembly is mainly made of left end cap, first partition, cylindrical shell, right end cap, second partition and third partition board.
Left end cap connects the left port of cylindrical shell；First partition is placed in cylindrical shell on the right side of left end cap；Third
Partition board is placed in cylindrical shell on the right side of first partition；Second partition is placed in cylindrical shell, and second partition left side resists
The right side of third partition board, the first end face and second end face of second partition resist cylindrical shell inner surface；Right end cap connecting cylinder
The lower part left side on the right output port top of sandwich type element, right end cap resists second partition right side.
The right output port of second row inflator passes through the hole of left end cap lower part, part to be placed in the first intracavitary of casing assembly.
First row inflator passes through the centre bore of first partition, the left part of first row inflator casing assembly the first intracavitary,
Second intracavitary of the right part of first row inflator in casing assembly.
The right output port of the left port connection first row inflator of threeway, second intracavitary of the threeway in casing assembly.
The left port of the hole set connection threeway of cover, the right output port of cover are supported on the left side of third partition board.
The upper port of the lower port connection threeway of first bend pipe, the right output port of the first bend pipe are passed through from the left side of third partition board
First hole.
The lower port of the upper port connection threeway of second bend pipe, the right output port of the second bend pipe are passed through from the left side of third partition board
Third hole.
The left port of second inlet cylinder connects the right output port of the second bend pipe, fourth chamber of second inlet cylinder in casing assembly
It is interior.
The left port of first inlet cylinder connects the right output port of the first bend pipe, and the right output port of the first inlet cylinder passes through the right side from left side
Hole on end cap.
First group of resistive absorbing material be filled in by the inner surface of cover, the outer surface of threeway, the first bend pipe outer surface and
The space that the left side of third partition board is constituted, is filled up.
Second group of resistive absorbing material is filled in by the third chamber of casing assembly, the outer surface of the first bend pipe and the first air inlet
The space that the outer surface of cylinder is constituted, is filled up.
The left port of built-in thin inlet cylinder passes through the second hole of third partition board, and the left end of built-in thin inlet cylinder is in casing assembly
The second intracavitary, the 4th intracavitary of the right end of built-in thin inlet cylinder in casing assembly.
The component being made of the first bend pipe, the second bend pipe and threeway is replaced by U-tube.
Multiple apertures are provided in first partition.
Multiple apertures are provided on the barrel of the second inlet cylinder.
Multiple apertures are provided on the barrel of the first inlet cylinder.
Multiple apertures are provided on the barrel of threeway.
Multiple apertures are provided on the barrel of the first bend pipe.
Multiple apertures are provided on the barrel of the second bend pipe.
The resistive absorbing material includes：Noise elimination silk floss and super glass wool.
Advantage
The present invention realizes reduction noise by the means of composite sound damping, compares its advantage is that being adapted to noisy frequency range
Wide noise elimination.
Description of the drawings
Fig. 1 is a kind of assembling schematic diagram of impedance composite muffler；
Fig. 2 is the A of Fig. 1 to sectional view；
Fig. 3 is the B of Fig. 1 to sectional view；
Fig. 4 is the part drawing of second partition；
Fig. 5 is a kind of structural schematic diagram of impedance composite muffler shell；
Fig. 6 is a kind of partial simplified assembling schematic diagram of impedance composite muffler.
Specific implementation mode
Embodiment 1
A kind of impedance composite muffler, including：Casing assembly, first row inflator 3, the 4, first bend pipe 6 of cover, the first air inlet
The 10, second inlet cylinder 11 of cylinder, the second bend pipe 13, threeway 14, second row inflator 15 and built-in thin inlet cylinder 17 composition；Its feature exists
In：
Casing assembly mainly by left end cap 1, first partition 2, cylindrical shell 7, right end cap 9, second partition 16 and third every
Plate 12 forms；
Left end cap 1 connects the left port of cylindrical shell 7；First partition 2 is placed in cylindrical shell 7 on the right side of left end cap 1；
Third partition board 12 is placed in cylindrical shell 7 on the right side of first partition 2；Second partition 16 is placed in cylindrical shell 7, second partition
16 left sides resist the right side of third partition board 12, and the first end face 21 and second end face 22 of second partition 16 resist cylindrical shell
7 inner surfaces；Right end cap 9 connects the right output port top of cylindrical shell 7, and the lower part left side of right end cap 9 resists 16 right side of second partition
End face；
The right output port of second row inflator 15 passes through the hole of 1 lower part of left end cap, part to be placed in the first chamber 23 of casing assembly；
First row inflator 3 passes through the centre bore of first partition 2, the first chamber of the left part of first row inflator 3 in casing assembly
In 23, the right part of first row inflator 3 is in the second chamber 24 of casing assembly；
The right output port of the left port connection first row inflator 3 of threeway 14, threeway 14 is in the second chamber 24 of casing assembly；
The left port of the hole set connection threeway 14 of cover 4, the right output port for covering 4 are supported on the left side of third partition board 12；
The upper port of the lower port connection threeway 14 of first bend pipe 6, the right output port of the first bend pipe 6 is from a left side for third partition board 12
Side passes through the first hole 18；
The lower port of the upper port connection threeway 14 of second bend pipe 13, the right output port of the second bend pipe 13 is from third partition board 12
Left side passes through third hole 20；
The left port of second inlet cylinder 11 connects the right output port of the second bend pipe 13, the second inlet cylinder 11 in casing assembly the
In four chambers 26；
The left port of first inlet cylinder 10 connects the right output port of the first bend pipe 6, and the right output port of the first inlet cylinder 10 is from left side
Hole on right end cap 9；
First group of resistive absorbing material 5 be filled in by the inner surface of cover 4, the outer surface of threeway 14, the first bend pipe 6 appearance
The space that face and the left side of third partition board 12 are constituted, is filled up；
Second group of resistive absorbing material 8 is filled in the outer surface and first of third chamber 25 by casing assembly, the first bend pipe 6
The space that the outer surface of inlet cylinder 10 is constituted, is filled up.
Embodiment 2
A kind of embodiment 2 of impedance composite muffler is substantially the same manner as Example 1, the difference is that：
The left port of built-in thin inlet cylinder 17 passes through the second hole 19 of third partition board 12, the left end of built-in thin inlet cylinder 17 to exist
In second chamber 24 of casing assembly, the right end of built-in thin inlet cylinder 17 is in the 4th chamber 26 of casing assembly.
Embodiment 3
A kind of embodiment 3 of impedance composite muffler is substantially the same manner as Example 1, the difference is that：
The component being made of the first bend pipe 6, the second bend pipe 13 and threeway 14 is replaced by U-tube 27.
Embodiment 4
A kind of embodiment 4 of impedance composite muffler is substantially the same manner as Example 1, the difference is that：
Multiple apertures are provided in first partition 2.
Embodiment 5
A kind of embodiment 5 of impedance composite muffler is substantially the same manner as Example 1, the difference is that：
It is provided with multiple apertures on the barrel of the second inlet cylinder 11.
Embodiment 6
A kind of embodiment 6 of impedance composite muffler is substantially the same manner as Example 1, the difference is that：
It is provided with multiple apertures on the barrel of the first inlet cylinder 10.
Embodiment 7
A kind of embodiment 7 of impedance composite muffler is substantially the same manner as Example 1, the difference is that：
Multiple apertures are provided on the barrel of threeway 14.
Embodiment 8
A kind of embodiment 8 of impedance composite muffler is substantially the same manner as Example 1, the difference is that：
It is provided with multiple apertures on the barrel of the first bend pipe 6.
Embodiment 9
A kind of embodiment 9 of impedance composite muffler is substantially the same manner as Example 1, the difference is that：
It is provided with multiple apertures on the barrel of the second bend pipe 13.
Application method
By the air inlet access noise source of the present invention, internal sound-attenuating system, noise reach outlet to noise through the invention
When, noise will substantially reduce.
Operation principle
The noise of automobile mainly comes to mechanical friction, mechanical oscillation and exhaust emissions, and present invention is generally directed to exhaust emissions
The noise reduction of the noise of generation.
By noise source access the present invention end of being bullied, noise source by two approach through the invention.One pipeline is surrounded by
The resistive channel of resistive material；One pipeline is provided with many apertures.For noise when by two pipelines, the section in path is not
Break and changes and form resistance channel.To generate resistive channel and the resistance channel of noise.
Resistive channel can allow most high frequency sound wave to enter material, to make sound wave gradually use up totally, for height
Frequency noise effects are preferable；Resistance channel silencer is mainly to bypass resonant cavity on pipeline the area of pipeline is either made to occur to dash forward
Become, for different frequency sound wave have selectivity so that sound wave occurs in the duct reflection and interference phenomena such as, for it is low,
The silencing noise effect of intermediate frequency is preferable.It is an advantage of the invention that the frequency range eliminated the noise is wider.
Claims (3)
1. a kind of impedance composite muffler, including：Casing assembly, first row inflator（3）, cover（4）, the first bend pipe（6）, first
Inlet cylinder（10）, the second inlet cylinder（11）, the second bend pipe（13）, threeway（14）, second row inflator（15）With built-in thin inlet cylinder
（17）Composition；It is characterized in that：
Casing assembly is mainly by left end cap（1）, first partition（2）, cylindrical shell（7）, right end cap（9）, second partition（16）With
Third partition board（12）Composition；
Left end cap（1）Connect cylindrical shell（7）Left port；First partition（2）It is placed in cylindrical shell（7）Inherent left end cap（1）
Right side, in first partition（2）On be provided with multiple apertures；Third partition board（12）It is placed in cylindrical shell（7）Inherent first partition（2）
Right side；Second partition（16）It is placed in cylindrical shell（7）It is interior, second partition（16）Left side resists third partition board（12）Right end
Face, second partition（16）First end face（21）And second end face（22）Resist cylindrical shell（7）Inner surface；Right end cap（9）Even
Connect cylinder sandwich type element（7）Right output port top, right end cap（9）Lower part left side resist second partition（16）Right side；
Second row inflator（15）Right output port pass through left end cap（1）The hole of lower part, part are placed in the first chamber of casing assembly（23）
It is interior；
First row inflator（3）Across first partition（2）Centre bore, first row inflator（3）Left part the first of casing assembly
Chamber（23）It is interior, first row inflator（3）Right part casing assembly the second chamber（24）It is interior；
Threeway（14）Left port connect first row inflator（3）Right output port, threeway（14）In the second chamber of casing assembly（24）
It is interior, in threeway（14）Barrel on be provided with multiple apertures；
Cover（4）Hole set connection threeway（14）Left port, cover（4）Right output port support in third partition board（12）Left side
On；
First bend pipe（6）Lower port connect threeway（14）Upper port, the first bend pipe（6）Right output port from third partition board（12）
Left side pass through the first hole（18）, in the first bend pipe（6）Barrel on be provided with multiple apertures；
Second bend pipe（13）Upper port connect threeway（14）Lower port, the second bend pipe（13）Right output port from third partition board
（12）Left side pass through third hole（20）, in the second bend pipe（13）Barrel on be provided with multiple apertures；
Second inlet cylinder（11）Left port connect the second bend pipe（13）Right output port, the second inlet cylinder（11）In casing assembly
4th chamber（26）It is interior, in the second inlet cylinder（11）Barrel on be provided with multiple apertures；
First inlet cylinder（10）Left port connect the first bend pipe（6）Right output port, the first inlet cylinder（10）Right output port from a left side
Side passes through right end cap（9）On hole, in the first inlet cylinder（10）Barrel on be provided with multiple apertures；
First group of resistive absorbing material（5）It is filled in by cover（4）Inner surface, threeway（14）Outer surface, the first bend pipe（6）'s
Outer surface and third partition board（12）Left side constitute space, fill up；
Second group of resistive absorbing material（8）It is filled in the third chamber by casing assembly（25）, the first bend pipe（6）Outer surface and
One inlet cylinder（10）Outer surface constitute space, fill up.
2. a kind of impedance composite muffler according to claim 1, it is characterised in that：
Built-in thin inlet cylinder（17）Left port pass through third partition board（12）The second hole（19）, built-in thin inlet cylinder（17）A left side
Hold the second chamber in casing assembly（24）It is interior, built-in thin inlet cylinder（17）Right end casing assembly the 4th chamber（26）It is interior.
3. a kind of impedance composite muffler according to claim 1, it is characterised in that：
By the first bend pipe（6）, the second bend pipe（13）And threeway（14）The component of composition is by U-tube（27）Instead of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610423727.XA CN105927315B (en) | 2016-06-16 | 2016-06-16 | A kind of impedance composite muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610423727.XA CN105927315B (en) | 2016-06-16 | 2016-06-16 | A kind of impedance composite muffler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105927315A CN105927315A (en) | 2016-09-07 |
| CN105927315B true CN105927315B (en) | 2018-08-10 |
Family
ID=56830066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610423727.XA Expired - Fee Related CN105927315B (en) | 2016-06-16 | 2016-06-16 | A kind of impedance composite muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105927315B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106782485B (en) * | 2016-11-18 | 2021-04-20 | 宁德市银通发电设备有限公司 | Impedance composite muffler |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5572622A (en) * | 1978-11-25 | 1980-05-31 | Hiroshi Narui | Silencer |
| US5101931A (en) * | 1990-05-23 | 1992-04-07 | Copeland Corporation | Discharge muffler and method |
| CN2830654Y (en) * | 2005-10-31 | 2006-10-25 | 陈恳 | Silencer of impedance combined single-cylinder small general gasoline engine |
| CN2921306Y (en) * | 2006-06-28 | 2007-07-11 | 力帆实业(集团)有限公司 | Impedance composite noise silencer |
| CN203009006U (en) * | 2012-11-30 | 2013-06-19 | 重庆市北碚区枫火机械制造有限公司 | Exhaust silencer |
| CN204716340U (en) * | 2015-04-09 | 2015-10-21 | 北京市通州迪拉汽车附件有限公司 | Five cavity impedance complex mufflers |
-
2016
- 2016-06-16 CN CN201610423727.XA patent/CN105927315B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN105927315A (en) | 2016-09-07 |
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